Scientific Papers

Page 30 of 69« First...1020...2829303132...405060...Last »

Development of microsatellite markers for globally distributed populations of the threatened silky shark

Development of microsatellite markers for globally distributed populations of the threatened silky shark

Published on 05. December 2014 Development of microsatellite markers for globally distributed populations of the threatened silky shark, Carcharhinus falciformis J. R. O’Bryhim, J. Spaet, J. R. Hyde, K. L. Jones, D. H. Adams, S. L. Lance ABSTRACT: Eighteen microsatellite loci were developed for the silky shark Carcharhinus falciformis and screened across a total of

Evaluating manta ray mucus as an alternative DNA source for population genetics study

Evaluating manta ray mucus as an alternative DNA source for population genetics study

Published on 12. December 2014 Evaluating manta ray mucus as an alternative DNA source for population genetics study: underwater-sampling, dry-storage and PCR success Tom Kashiwagi, Elisabeth A Maxwell, Andrea D Marshall, Ana B Christensen ABSTRACT: Sharks and rays are increasingly being identified as high-risk species for extinction, prompting urgent assessments of their local or regional

Stable isotope analysis of vertebrae reveals ontogenetic changes in habitat in an endothermic pelagic shark

Stable isotope analysis of vertebrae reveals ontogenetic changes in habitat in an endothermic pelagic shark

Published on 10. December 2014 Stable isotope analysis of vertebrae reveals ontogenetic changes in habitat in an endothermic pelagic shark Aaron B. Carlisle, Kenneth J. Goldman, Steven Y. Litvin, Daniel J. Madigan, Jennifer S. Bigman, Alan M. Swithenbank, Thomas C. Kline, Barbara A. Block ABSTRACT: Ontogenetic changes in habitat are driven by shifting life-history requirements

The Jaws Effect: How movie narratives are used to influence policy responses to shark bites in Western Australia

The Jaws Effect: How movie narratives are used to influence policy responses to shark bites in Western Australia

Published on 06. December 2014 The Jaws Effect: How movie narratives are used to influence policy responses to shark bites in Western Australia Christopher Neff ABSTRACT: This article examines the way political actors use film narratives to influence policymaking following shark bites. To analyse these relationships I propose the concept of the Jaws Effect, where

The trade in sharks and their products in the United Arab Emirates

The trade in sharks and their products in the United Arab Emirates

Published online on 05. December 2014 The trade in sharks and their products in the United Arab Emirates Rima W. Jabado, Saif M. Al Ghais, Waleed Hamza, Aaron C. Henderson, Julia L.Y. Spaet, Mahmood S. Shivji, Robert H. Hanner ABSTRACT: The rapid growth in the demand for shark products, particularly fins, has led to the

A new metaheuristic algorithm based on shark smell optimization

A new metaheuristic algorithm based on shark smell optimization

Published online on 02. December 2014 A new metaheuristic algorithm based on shark smell optimization Oveis Abedinia, Nima Amjady, Ali Ghasemi ABSTRACT: In this article, a new metaheuristic optimization algorithm is introduced. This algorithm is based on the ability of shark, as a superior hunter in the nature, for finding prey, which is taken from

A C-type lectin isolated from the skin of Japanese bullhead shark binds a remarkably broad range of sugars and induces blood coagulation

A C-type lectin isolated from the skin of Japanese bullhead shark binds a remarkably broad range of sugars and induces blood coagulation

Published online on 29. November 2014 A C-type lectin isolated from the skin of Japanese bullhead shark (Heterodontus japonicus) binds a remarkably broad range of sugars and induces blood coagulation Shigeyuki Tsutsui, Yuma Dotsuta, Ayaka Ono, Masanari Suzuki, Hiroaki Tateno, Jun Hirabayashi, Osamu Nakamura ABSTRACT: The aim of the present study was to determine the

Does ammonia trigger hyperventilation in the spiny dogfish ?

Does ammonia trigger hyperventilation in the spiny dogfish ?

Published online on 20. November 2014 Does ammonia trigger hyperventilation in the elasmobranch, Squalus acanthias suckleyi ? Gudrun De Boeck, Chris M. Wood ABSTRACT: We examined the ventilatory response of the spiny dogfish, to elevated internal or environmental ammonia. Sharks were injected via arterial catheters with ammonia solutions or their Na salt equivalents sufficient to

First record of mako shark off the coast of La Media Guajira, Colombian Caribbean

First record of mako shark off the coast of La Media Guajira, Colombian Caribbean

Published in November 2014 SHORT COMMUNICATION First record of mako shark Isurus oxyrinchus (Lamniformes: Lamnidae) off the coast of La Media Guajira, Colombian Caribbean Paola Palacios-Barreto, Andrea Ramírez-Hernández, Oscar Uriel Mendoza-Vargas & Andrés F. Navia ABSTRACT: The occurrence of the shortfin mako Isurus oxyrinchus, caught by artisanal fishermen using a longline shark fishing, was recorded

Oceanographic influences on a global whale shark hotspot in southern Mozambique

Oceanographic influences on a global whale shark hotspot in southern Mozambique

Published on 04. December 2014 Oceanographic influences on a global whale shark hotspot in southern Mozambique Christoph A Rohner​, Scarla J Weeks, Anthony J Richardson, Simon J Pierce, Marites M Magno-Canto, Gene Carl Feldman, Geremy Cliff, Michael J Roberts ABSTRACT: Coastal aggregations of whale sharks Rhincodon typus around the world are generally seasonal and driven

New Molecular Tools for the Identification of 2 Endangered Smooth-Hound Sharks

New Molecular Tools for the Identification of 2 Endangered Smooth-Hound Sharks

Published on 25. November 2014 New Molecular Tools for the Identification of 2 Endangered Smooth-Hound Sharks, Mustelus mustelus and Mustelus punctulatus Ilaria A. M. Marino, Emilio Riginella, Alessia Cariani, Fausto Tinti, Edward D. Farrell, Carlotta Mazzoldi, Lorenzo Zane ABSTRACT: The smooth-hounds represent a significant proportion of the elasmobranch catch in the Adriatic basin of the

Long-term body pigmentation changes on a manta ray

Long-term body pigmentation changes on a manta ray

Published on 24. November 2014 Long-term body pigmentation changes on a manta ray (Mobulidae) Csilla Ari ABSTRACT: Manta rays (genus Manta) are listed as vulnerable on the IUCN Red List based partly on population studies that use body coloration and ventral spot patterns to identify and count individuals, as a result of such patterns being

Arctic skate preys on remarkably large glacial eelpouts

Arctic skate preys on remarkably large glacial eelpouts

Published on 21. November 2014 Arctic skate Amblyraja hyperborea preys on remarkably large glacial eelpouts Lycodes frigidus I. Byrkjedal, J. S. Christiansen, O. V. Karamushko, G. Langhelle, A. Lynghammar ABSTRACT: During scientific surveys on the continental slopes north-west of Spitsbergen and off north-east Greenland (c. 600 and 1000 m depths), two female Arctic skates Amblyraja hyperborea

Residency patterns and movements of grey reef sharks in semi-isolated coral reef habitats

Residency patterns and movements of grey reef sharks in semi-isolated coral reef habitats

Published on 16. November 2014 Residency patterns and movements of grey reef sharks (Carcharhinus amblyrhynchos) in semi-isolated coral reef habitats Mario Espinoza, Michelle. R. Heupel, Andrew J. Tobin, Colin A. Simpfendorfer ABSTRACT: The degree of reef isolation may limit the frequency of long-range dispersals in reef-associated sharks. Therefore, understanding how the behaviour and spatial ecology

Ontogenetic migration of a female scalloped hammerhead shark in the Gulf of California

Ontogenetic migration of a female scalloped hammerhead shark in the Gulf of California

Published on 26. November 2014 Ontogenetic migration of a female scalloped hammerhead shark Sphyrna lewini in the Gulf of California E Mauricio Hoyos-Padilla, James T Ketchum, A Peter Klimley, Felipe Galván-Magaña ABSTRACT: Background Little information exists on the vertical and horizontal movements of juvenile scalloped hammerhead sharks (Sphyrna lewini). Measurements of the sizes of juveniles

Page 30 of 69« First...1020...2829303132...405060...Last »